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EXAM REVIEW
NCCCO Examination
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Ihuman Case Study
LETRS
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Gas Fitter 2 Practice Test
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Question Number 21
A low water cut off device on an automatically fired hot water heating boiler rated at 350,000 Btuh (102 kW) is:
A. Not required if a limit control is installed
B. Not required if it is installed in the industrial application
C. Required when any portion of the circulating system is located below the boiler
D. Required only in commercial applications
✔ Correct Answer:
C. Required when any portion of the circulating system is located below the boiler
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